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QUIZ

11th

grade

58%

accuracy

508

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SAMERA A

5 years

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11 questions

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- 1. Multiple Choice2 minutes1 pt
Dave runs a 400 m race with a speed of 4 m/s. How long will it take him to finish the race?

1600 s

100 min

100 s

0.025 s

- 2. Multiple Choice2 minutes1 ptA roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?24 m/s
^{2}18 m/s^{2}16 m/s^{2}16 m/s - 3. Multiple Choice2 minutes1 ptA dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?-7.5 m/s-7.5 m/s
^{2}-0.5 m/s^{2}7.5 mi//hr - 4. Multiple Choice2 minutes1 pt
Car A is traveling to the right with a speed of 29m/s when the rider slams on the accelerator to pass car B. Car A passes car B in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it speeds up. What equation should you choose?

v

_{f}=v_{i}+atΔx=v

_{i}t+1/2at^{2}v

_{f}^{2}=v_{i}^{2}+2aΔXΔx=((v

_{f}+v_{i})/2)t - 5. Multiple Choice2 minutes1 pt
An airplane accelerates down a runway at 3.20 m/s

^{2}for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.Which equation is appropriate?

v

_{f}=v_{i}+atΔx=v

_{i}t+1/2at^{2}v

_{f}^{2}=v_{i}^{2}+2aΔXΔx=((v

_{f}+v_{i})/2)t - 6. Multiple Choice1 minute1 pt
Kinematic equations (aka Equations of uniform motion) can only be used when you have a constant ....

Position

Velocity

Acceleration

Time

- 7. Multiple Choice2 minutes1 ptA golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s
^{2}, what is its velocity after 2 s?0 m/s0.5 m/s1 m/s1.5 m/s - 8. Multiple Choice45 seconds1 pt
An satellite which is moving at constant speed in orbit around the Earth has an acceleration...

True

False

- 9. Multiple Choice2 minutes1 ptA golf ball accelerates off a tee at 15m/s
^{2}, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?750 seconds35 seconds0.3 seconds3.3 seconds - 10. Multiple Choice2 minutes1 pt
Car A is traveling to the right with a speed of 29m/s when the rider slams on the accelerator to pass car B. Car A passes car B in 110 m with constant acceleration and reaches a speed of 34m/s. What is the acceleration of car A?

1.43m/s

^{2}9.07m/s

^{2}34m/s

^{2}0.04m/s

^{2} - 11. Multiple Choice2 minutes1 pt
An airplane accelerates down a runway at 5.3 m/s

^{2}for 30.4s until it finally lifts off the ground. Determine the distance traveled before takeoff:349m

2449m

2610m

80.6m

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